交流永磁力矩电机高过载状态下的转矩波动研究
岳通1，魏国1，王骞2，余潇1，雷晗1
（1.中国兵器工业第二〇九研究所，四川 成都 610041；2.哈尔滨工业大学 电气工程及自动化学院，黑龙江 哈尔滨 150001）
摘要：交流永磁力矩电机具有转矩密度高、控制精度高、免维护等特点，转矩平稳性是其关键指标之一。本文采用有限元法对交流永磁力矩电机在不同负载状态下（轻载、额定负载、高过载）的转矩波动进行研究，并揭示转矩波动与饱和之间的变化规律。研究结果表明：交流永磁同步电机的转矩波动与负载程度密切相关；随着负载的增大，转矩波动峰值和转矩波动系数均呈现先上升后下降再上升的变化趋势；电磁转矩波动幅值明显高于总体转矩波动，只能反映总体转矩波动的趋势；负载齿槽转矩峰值的变化趋势和电磁转矩波动的规律几乎相同，也可当做判断总体转矩波动的一个参考值。
关键词：交流永磁力矩电机；过载；转矩波动
中图分类号：TM351 文献标志码：A doi：10.3969/j.issn.1006-0316.2022.09.003
文章编号：1006-0316 (2022) 09-0015-09
Research on Torque Ripple of Permanent Magnet AC Torque Motors Under Overload Conditions
YUE Tong1，WEI Guo1，WANG Qian2，YU Xiao1，LEI Han1
( 1.Norla Institute of Technical Physics, Chengdu 610041, China; 2.School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China )
Abstract：Permanent magnet AC torque motor has the characteristics of high torque density, high control precision, free maintenance. And torque smoothness is one of the key indicators. The paper analyzes the torque ripple of permanent magnet AC torque motors at different load conditions ( including light load, rated load and overload ), and reveals the relationship between torque ripple and saturation. It is shown that the torque ripple is closely related to the load level. As the load increases, both the peak torque ripple and torque ripple coefficient tend to rise first, then fall, and rise again. Electromagnetic torque fluctuation is significantly higher than the overall torque fluctuation, which can only reflect the trend of overall torque fluctuation. The variation trend of load cogging torque peak value is almost the same as that of electromagnetic torque fluctuation, and can also be used as a reference value for judging the overall torque fluctuation.
Key words：permanent magnet AC torque motor；overload；torque ripple
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收稿日期：2021-10-12
作者简介：岳通（1977－），男，四川南充人，硕士，研究员，主要从事系统总体结构方面的研究工作，E-mail：hityuetong163@163.com。
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